COMPONENT MAINTENANCE MANUAL
BA27
24-01-01
This document contains Data controlled by the U.S. Export Administration Regulations. Diversion or use contrary to U.S. law is prohibited
As noted in section I, The battery may be stored up to 5 years at or below 25°C
without degradation of performance provided that an inspection and open circuit
voltage check is conducted every 12 months following the initial 2-year storage
period. When stored at temperatures above 25°C and below 35°C the battery
should be inspected every 12 months following the initial 12 months storage
period. When stored at temperatures at or above 35°C the battery should be
inspected every 6 months.
UNOTEU: If the storage voltage is lower than 25.3 volts, perform a boost charge
in accordance with paragraph H.
UNOTE:U Service life begins with the date of first installation on the aircraft.
The graph in Figure 6 demonstrates typical capacity retention of the battery
during storage without regular boost charges.
Charge Retention During Storage
Figure 6
Page 10
Mar 13/17
% STATE OF CHARGE AS A FUNCTION OF OPEN CIRCUIT VOLTAGE
DURING STORAGE @ 20 DEGREES CELSIUS
2.100
2.110
2.120
2.130
2.140
2.150
2.160
2.170
03691215182124
Months
OPEN CIRCUIT VOLTS / CELL
70
74
79
83
87
91
96
100
% STATE OF CHARGE
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